In Lesson 4, students use observations from Lesson 3 to develop and revise models (SEP.2) to describe that light reflecting from objects and entering the eyes (PS4.B) allows objects to be seen (CC.2).
In Lesson 9 part 2, students continue to make observations (SEP.3) about the relationship between the color of light and the color of objects (PS4.B) to determine how these factors affect (CC.2) what ...
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